你可能感興趣的試題

單項(xiàng)選擇題

A buoy with a composite group-flashing light indicates a(n)（）.

A.anchorage area
B.fish net area
C.bifurcation
D.dredging area

單項(xiàng)選擇題

A buoy marking a wreck will show a(n)（）.

A.white light FL (2) and a topmark of 2 black spheres
B.occulting green light and may be lettered
C.yellow light and will be numbered
D.continuous quick white light and may be numbered

A buoy，being a shape of cylinder and with red group flashing，shows that it is（）.

你可能感興趣的試題

A buoy with a composite group-flashing light indicates a(n)（）.

A buoy marking a wreck will show a(n)（）.

A buoy，being a shape of cylinder and with red group flashing，shows that it is（）.